Is playing guitar while pregnant ok?

M
I am going to asks dr at my next appt, but that isn't for two weeks. I am supposed to play the guitar and sing at two weddings this summer and I'll be about 6 months pregnant. Is it safe to play the guitar everyday? Do you think the vibrations are ok. I thought it would be fine, but of course I googled it and there was a comment about the skull not fully forming...one lone comment, but of course it got me worried!